package com.dongao.activity;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Configuration;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceCategory;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.RingtonePreference;
import android.text.TextUtils;

import java.util.List;

import com.dongao.activity.R;
import com.dongao.activity.R.string;

/**
 * A {@link PreferenceActivity} that presents a set of application settings. On
 * handset devices, settings are presented as a single list. On tablets,
 * settings are split by category, with category headers shown to the left of
 * the list of settings.
 * <p>
 * See <a href="http://developer.android.com/design/patterns/settings.html">
 * Android Design: Settings</a> for design guidelines and the <a
 * href="http://developer.android.com/guide/topics/ui/settings.html">Settings
 * API Guide</a> for more information on developing a Settings UI.
 */
public class SettingsActivity extends PreferenceActivity {
	/**
	 * Determines whether to always show the simplified settings UI, where
	 * settings are presented in a single list. When false, settings are shown
	 * as a master/detail two-pane view on tablets. When true, a single pane is
	 * shown on tablets.
	 */
//	private static final boolean ALWAYS_SIMPLE_PREFS = false;
//
//	@Override
//	protected void onPostCreate(Bundle savedInstanceState) {
//		super.onPostCreate(savedInstanceState);
//
//		setupSimplePreferencesScreen();
//	}
//
//	/**
//	 * Shows the simplified settings UI if the device configuration if the
//	 * device configuration dictates that a simplified, single-pane UI should be
//	 * shown.
//	 */
//	private void setupSimplePreferencesScreen() {
//		if (!isSimplePreferences(this)) {
//			return;
//		}
//
//		// In the simplified UI, fragments are not used at all and we instead
//		// use the older PreferenceActivity APIs.
//
//		// Add 'general' preferences.
//		addPreferencesFromResource(R.xml.pref_general);
//
//		// Add 'notifications' preferences, and a corresponding header.
//		PreferenceCategory fakeHeader = new PreferenceCategory(this);
//		fakeHeader.setTitle(R.string.pref_header_notifications);
//		getPreferenceScreen().addPreference(fakeHeader);
//		addPreferencesFromResource(R.xml.pref_notification);
//
//		// Add 'data and sync' preferences, and a corresponding header.
//		fakeHeader = new PreferenceCategory(this);
//		fakeHeader.setTitle(R.string.pref_header_data_sync);
//		getPreferenceScreen().addPreference(fakeHeader);
//		addPreferencesFromResource(R.xml.pref_data_sync);
//
//		// Bind the summaries of EditText/List/Dialog/Ringtone preferences to
//		// their values. When their values change, their summaries are updated
//		// to reflect the new value, per the Android Design guidelines.
//		bindPreferenceSummaryToValue(findPreference("example_text"));
//		bindPreferenceSummaryToValue(findPreference("example_list"));
//		bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
//		bindPreferenceSummaryToValue(findPreference("sync_frequency"));
//	}
//
//	/** {@inheritDoc} */
//	@Override
//	public boolean onIsMultiPane() {
//		return isXLargeTablet(this) && !isSimplePreferences(this);
//	}
//
//	/**
//	 * Helper method to determine if the device has an extra-large screen. For
//	 * example, 10" tablets are extra-large.
//	 */
//	private static boolean isXLargeTablet(Context context) {
//		return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
//	}
//
//	/**
//	 * Determines whether the simplified settings UI should be shown. This is
//	 * true if this is forced via {@link #ALWAYS_SIMPLE_PREFS}, or the device
//	 * doesn't have newer APIs like {@link PreferenceFragment}, or the device
//	 * doesn't have an extra-large screen. In these cases, a single-pane
//	 * "simplified" settings UI should be shown.
//	 */
//	private static boolean isSimplePreferences(Context context) {
//		return ALWAYS_SIMPLE_PREFS
//				|| Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB
//				|| !isXLargeTablet(context);
//	}
//
//	/** {@inheritDoc} */
//	@Override
//	@TargetApi(Build.VERSION_CODES.HONEYCOMB)
//	public void onBuildHeaders(List<Header> target) {
//		if (!isSimplePreferences(this)) {
//			loadHeadersFromResource(R.xml.pref_headers, target);
//		}
//	}
//
//	/**
//	 * A preference value change listener that updates the preference's summary
//	 * to reflect its new value.
//	 */
//	private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
//		@Override
//		public boolean onPreferenceChange(Preference preference, Object value) {
//			String stringValue = value.toString();
//
//			if (preference instanceof ListPreference) {
//				// For list preferences, look up the correct display value in
//				// the preference's 'entries' list.
//				ListPreference listPreference = (ListPreference) preference;
//				int index = listPreference.findIndexOfValue(stringValue);
//
//				// Set the summary to reflect the new value.
//				preference
//						.setSummary(index >= 0 ? listPreference.getEntries()[index]
//								: null);
//
//			} else if (preference instanceof RingtonePreference) {
//				// For ringtone preferences, look up the correct display value
//				// using RingtoneManager.
//				if (TextUtils.isEmpty(stringValue)) {
//					// Empty values correspond to 'silent' (no ringtone).
//					preference.setSummary(R.string.pref_ringtone_silent);
//
//				} else {
//					Ringtone ringtone = RingtoneManager.getRingtone(
//							preference.getContext(), Uri.parse(stringValue));
//
//					if (ringtone == null) {
//						// Clear the summary if there was a lookup error.
//						preference.setSummary(null);
//					} else {
//						// Set the summary to reflect the new ringtone display
//						// name.
//						String name = ringtone
//								.getTitle(preference.getContext());
//						preference.setSummary(name);
//					}
//				}
//
//			} else {
//				// For all other preferences, set the summary to the value's
//				// simple string representation.
//				preference.setSummary(stringValue);
//			}
//			return true;
//		}
//	};
//
//	/**
//	 * Binds a preference's summary to its value. More specifically, when the
//	 * preference's value is changed, its summary (line of text below the
//	 * preference title) is updated to reflect the value. The summary is also
//	 * immediately updated upon calling this method. The exact display format is
//	 * dependent on the type of preference.
//	 * 
//	 * @see #sBindPreferenceSummaryToValueListener
//	 */
//	private static void bindPreferenceSummaryToValue(Preference preference) {
//		// Set the listener to watch for value changes.
//		preference
//				.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
//
//		// Trigger the listener immediately with the preference's
//		// current value.
//		sBindPreferenceSummaryToValueListener.onPreferenceChange(
//				preference,
//				PreferenceManager.getDefaultSharedPreferences(
//						preference.getContext()).getString(preference.getKey(),
//						""));
//	}
//
//	/**
//	 * This fragment shows general preferences only. It is used when the
//	 * activity is showing a two-pane settings UI.
//	 */
//	@TargetApi(Build.VERSION_CODES.HONEYCOMB)
//	public static class GeneralPreferenceFragment extends PreferenceFragment {
//		@Override
//		public void onCreate(Bundle savedInstanceState) {
//			super.onCreate(savedInstanceState);
//			addPreferencesFromResource(R.xml.pref_general);
//
//			// Bind the summaries of EditText/List/Dialog/Ringtone preferences
//			// to their values. When their values change, their summaries are
//			// updated to reflect the new value, per the Android Design
//			// guidelines.
//			bindPreferenceSummaryToValue(findPreference("example_text"));
//			bindPreferenceSummaryToValue(findPreference("example_list"));
//		}
//	}
//
//	/**
//	 * This fragment shows notification preferences only. It is used when the
//	 * activity is showing a two-pane settings UI.
//	 */
//	@TargetApi(Build.VERSION_CODES.HONEYCOMB)
//	public static class NotificationPreferenceFragment extends
//			PreferenceFragment {
//		@Override
//		public void onCreate(Bundle savedInstanceState) {
//			super.onCreate(savedInstanceState);
//			addPreferencesFromResource(R.xml.pref_notification);
//
//			// Bind the summaries of EditText/List/Dialog/Ringtone preferences
//			// to their values. When their values change, their summaries are
//			// updated to reflect the new value, per the Android Design
//			// guidelines.
//			bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
//		}
//	}
//
//	/**
//	 * This fragment shows data and sync preferences only. It is used when the
//	 * activity is showing a two-pane settings UI.
//	 */
//	@TargetApi(Build.VERSION_CODES.HONEYCOMB)
//	public static class DataSyncPreferenceFragment extends PreferenceFragment {
//		@Override
//		public void onCreate(Bundle savedInstanceState) {
//			super.onCreate(savedInstanceState);
//			addPreferencesFromResource(R.xml.pref_data_sync);
//
//			// Bind the summaries of EditText/List/Dialog/Ringtone preferences
//			// to their values. When their values change, their summaries are
//			// updated to reflect the new value, per the Android Design
//			// guidelines.
//			bindPreferenceSummaryToValue(findPreference("sync_frequency"));
//		}
//	}
}
